Home / 1,121.16-1,547.23-701.37

Finding the Fourth Proportional to 1,121.16, 1,547.23 and 701.37

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Solution

The fourth proportional to 1,121.16, 1,547.23 and 701.37 is: 967.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121.16 : 1,547.23 = 701.37 : x
  2. Step 2: Convert to fraction form
    1,121.16/1,547.23 = 701.37/x
  3. Step 3: Cross multiply
    1,121.16x = 1,547.23 × 701.37
  4. Step 4: Simplify right side
    1,121.16x = 1,085,185.60
  5. Step 5: Solve for x
    x = 1,085,185.60/1,121.16
  6. Step 6: Final answer
    x = 967.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.